Injector for hot-water heaters.



J. W. GUIMONT. INJB'GTOR P0P. HOT WATER HEATERS.

APPLICATION FILED MARJS, 1909.

Patented Sept. 28, 1909. 2 SHEETS-SHEET 1.

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Witnesses z Attorneys J. W. GUIMONT.

INJBGTOB ron HOT WATER HEATBBS.

APPLOATION FILED MAR.15,1909.

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Josnrn WILLIAM GUIMONT, or Mo'NrnEAI., QUEBEC, CANADA, Ass'IGNon To BOBINA LAFRAMBOISE GUIMQNT, oF MONTREAL, eANADA.

l y INJECTOB FOR EGT-WATER HEATERS.

'Specification of Letters Patent. Application and u'amn 1s, 1909. serial No. 4133.404.

Patented Sept. 2,8, 1909.

provements in Injectors for Hot-Water Heaters; and I do hereby declare that the following is a full, clear, and exact description of the invention, such as will enable others skilled in the-art to which it appertains to make and use the same. l

The invention to be hereinafter described relates to heaters for hot water heating systems and particularly to the combination therewith of an injector, and a special construction of check valve therefor. Broadly speaking, it comprises a casing adapted to contain a plurality of circulating and heating tubes, means for :delivering water to and from the casing, means for .delivering live steam l.to the tubes, sgecially constructed check valves reciproca mounted wit-hin the tubes, and means for mixing the live steam with the water within the casing. I In order tomore clearly disclose the construction, operation-and use of the invention,

reference should behad to the accompanying drawings forming part of the present application. l

Throughout the several figures o f the drawings, like reference characters designate the same parts.

In the drawings Figure 1 is a longitudi- `nal section through one of the tubes; Fig. 2 is-a similar view of a modified form; Fi 3 is a lon itudinalsection through a comp ete heater s owing water pipe connections; and, F1 4 is a vertical cross section ofnFig. 3,'

en used for hot water heatingsystems` for houses, a large heater casing 1 1s provided. Within this casin are supported a plurality of longitudina, pipes comprising perforate sectlons 2 and imperforate sections 3, coupled together vby valve casings or valve chambers 4. Extending' from the valve casings are small tubes 5`of .considerabl essdiameter than the tube'fsections2 an lyin Vconcent-rically -vwithin the same. They are' eld'Ain position by being simply threaded intothe valve casings 4. The tube `sections 2 are similarlyA threaded into the valve casings 4. The tube ings.

perforated injector sections 3 are connected to the op osite ends' the longitudinal faces of the Valves have I been rovided with spiral grooves 8. Pins 9 project through the valve casings and play freely within the grooves. By engagement of the pins 9 with the walls of the 'grooves 8 the valve bodies will be rotated as they are moved longitudinally within their cas` The upper ends of the valves are gu1ded by vanes 10 which slide freely in openings in the valve casings.

Itis desired to heat the water by direct contact and intermixture of live steam. -To that end a. steam chest 11 is connected .to one end of the casing and adapted to receive live steam through a steam pipe `12 and deliver the same direct into the open ends of the imperforate tube sections 3 which are threaded into one head Aof the casing 1. The steam passes through the imperforate sections 3, through the valve chambers 4, through thefinjectors 5,v through the perforate tube sections 2, and out through `the Aerforations 13 thereof mixing with and heatmg the water-as it goes. As the steam rushes from the injector nozzleor end through theperforations therein, it will create a strong suction in the adjacent portion of the nerforate pipe sections 2. As a result of this suction thev water in the casing willrush throu h the perforations 14 to the interior ofte section andgwill be caught in the steam and driven forward with it zand out through the perforations 13 in the end of the tube sections.' The perforations14 shuld be madefwith a capacity about double that ofthe perforations tof theA injector 1n order to insure 'the .passage of 1an ample4 'quantity of water to the interior yof the tube sections for mixing with the steam. The heated water, ofcourse, passes from the casing 1 by a delivery pipe 15 and,

j after going through the heating system, re-

j may all bel very well omittedv and the perfo rate section may be simply threaded onto the injector which itself may be threaded or otherwise directly connected to the steam pipe.

The valve casing may be very conveniently made of several separable sections threaded together or otherwise connected.

It is thought that the application and use of the invention will be clear from the preceding detail description.'

Changes may be made in the construction, arrangement and disposition of the several parts of the invention without in any way `Vdeparting;from the field and scope of the same and it is meant to include all such within this application wherein only preferred forms have been disclosed.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is

A device of the character described comprising a casing, a plurality of pipes disosed within said casing, and each comprising a perforate and an imperforate pipe section, a valve casing connecting said sections, injectors connected to said valve cas-v ings and extending ,within said perforate pipe sections, check valves adapted to control delivery of steam to sald injectors,

means for delivering steam to'the aforesaid imperforate pipe sections and means for delivering water to and from said casing.

In witness whereof I have' hereunto set my hand in the presence of two witnesses. JOSEPH WILLIAM GUIMONT. Witnesses: j v L. A. GAUVIN, M. S. BABCooK. 

